recently published a review article in the annals of internal medicine: “enough, don’t waste money on vitamin and mineral supplements! 》For a while, many people go around telling me that supplements are useless and harmful. In fact, the core point of this article is what I emphasized in the article “the right and wrong of nutritional supplements” a long time ago: for the source of nutrition for healthy people, balanced diet always comes first. At present, there is no supplement that can completely make up for the side effects of poor dietary structure. (pay attention to my wechat: nutritionist Gu Zhongyi can receive this 9000 word long article when answering “nutritional supplements”). However, from another perspective, the premise of the conclusion (there is no need to take vitamin supplements) in the article of the annals of internal medicine is ignored by many people, which leads to misleading: “well nourished adults”. How many people are well nourished?

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in 2012, the “evaluation of nutrient intake of Chinese adult residents” released by experts of China Center for Disease Control and prevention showed that the dietary survey of 43672 Chinese adult residents found that the proportion of macro nutrient energy supply was unreasonable, and the intake of dietary calcium, zinc, selenium, magnesium, vitamin B1 and vitamin B2 was serious. The proportion of insufficient intake of calcium was more than 95%, and that of vitamin B1 and vitamin B2 was more than 80%. [2] The reason of

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lies in eating habits. If you think of Americans who drink milk like water, their calcium intake is not so serious. Please recall the food you ate yesterday and compare it with the Chinese people’s balanced diet pagoda. Did you eat a kilo of vegetables? What about the fruit? What about coarse grains and nuts? No barbecue? Think about your favorite fried food, take out when you have to work overtime, all kinds of sweet and salty snacks on the journey What’s more, in the process of food storage, processing and cooking, vitamins are often lost in different degrees, and food safety issues are also very worrying. We need to doubt whether the quality of our diet really meets the requirements.

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are followed by different national conditions. For example, more than 80% of Chinese people’s insufficient intake of vitamin B1 and B2 may have something to do with the scarcity of fortified food in China. As early as 1941, the FDA of the United States made regulations on adding vitamin B1, vitamin B2, nicotinic acid and iron to wheat flour. Now, 100 g of fortified wheat flour in the United States contains about 0.6 mg of vitamin B1 [3]. In other words, Americans can meet their needs only by adding 5 liang of vitamin B1 into wheat flour every day. It’s hard to get enough vitamins.

in conclusion, it is necessary to choose proper nutritional supplements for people who can not meet the balanced diet.

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